A ring of thieves pulls off the heist of an armored car, killing two security guards and leaving the money behind; Danny must seek his ex-wife's help in the case.

A killer uses online ads to find perfect candidates for murder: men no one notices are missing. Meanwhile, Jane finds that keeping her pregnancy quiet will be a tough assignment.

A senator's daughter is found murdered; Tommy begins to slip back into old habits; Jane reveals some shocking news.

A mock trial advisor dies during a competition; Jane is concerned that Angela may be hiding financial issues; Tommy hires a lawyer to settle his claim against the Storrow Center.

A statue breaks open to reveal a dead woman inside; the squad gets a new homicide detective; Dennis Rockmond returns to Boston and tries to woo Maura; Lydia goes into labor.

A mortician's body is found in one of his own funeral home's caskets; Tommy visits with his son TJ; Jane's loved ones react to her news.

Rory and Paris take off to Florida for their first spring break; Paris makes an unexpected bid for attention at a nightclub where the Shins are performing.

Jane and Maura investigate when a baseball coach is found dead in a locker room; Tommy returns home after being released from jail.

Tension mounts between Jane and Maura; Jane and Maura investigate the death of a college student; Angela is upset by Frankie Sr.'s news.

Casey and Naomi fight to escape a raging fire in Casey's apartment; Brett and the team struggle to create an engaging community fire safety presentation; Severide and Kidd's relationship reaches a crossroads.

A bank manager is shot during a robbery; Jane's brother may face more trouble as his relationship with Maura begins to grow.

Jane and the team try to find the contamination source after a man dies from poisoning; Stanley's true feelings are revealed; Tommy and Lydia disagree about custody of their baby; Detective Korsak reunites with his ex-wife.

A musician is stabbed in a bar; the squad realizes that the stabbing victim had something to hide; Jane's father returns with shocking news.

When a food truck chef dies suddenly, all signs point to poisoning; Tommy announces some big plans; Maura's birth mother tries to make amends with her daughter.

When a young dockworker is found dead, the team discovers that there are mob connections; Jane tries to avoid sensitivity training; Maura starts spending time with Jane's brother.

A viral video of Jane jeopardizes her career and reputation; the squad tries to solve a murder case involving a conspiracy theorist.

Dr. Hope Martin returns to ask Maura for a favor; Jane worries about Lt. Col. Jones' spinal surgery; Tommy shows off baby T.J.; a building collapses.

A body is discovered in the church at TJ's christening; Jane almost abuses her power to protect Tommy; Lydia's fiancé threatens to take custody of TJ; budget cuts cause tension at the department.

The Walkers try to identify the secret that Dennis York is holding over their heads; Holly and Nora investigate Ojai's hidden worth.

The Walkers try to identify the secret that Dennis York is holding over their heads; Holly and Nora investigate Ojai's hidden worth.